<SEC-DOCUMENT>0000728889-17-000919-index.html : 20170427
<SEC-HEADER>0000728889-17-000919.hdr.sgml : 20170427
<ACCEPTANCE-DATETIME>20170427171111
ACCESSION NUMBER:		0000728889-17-000919
CONFORMED SUBMISSION TYPE:	NSAR-A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20170228
FILED AS OF DATE:		20170427
DATE AS OF CHANGE:		20170427
EFFECTIVENESS DATE:		20170427

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			OPPENHEIMER DEVELOPING MARKETS FUND
		CENTRAL INDEX KEY:			0001015986
		IRS NUMBER:				936305075
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0831

	FILING VALUES:
		FORM TYPE:		NSAR-A
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-07657
		FILM NUMBER:		17790206

	BUSINESS ADDRESS:	
		STREET 1:		6803 SOUTH TUCSON WAY
		STREET 2:		N/A
		CITY:			CENTENNIAL
		STATE:			CO
		ZIP:			80112-3924
		BUSINESS PHONE:		303-768-3200

	MAIL ADDRESS:	
		STREET 1:		6803 SOUTH TUCSON WAY
		STREET 2:		N/A
		CITY:			CENTENNIAL
		STATE:			CO
		ZIP:			80112-3924
<SERIES-AND-CLASSES-CONTRACTS-DATA>
<EXISTING-SERIES-AND-CLASSES-CONTRACTS>
<SERIES>
<OWNER-CIK>0001015986
<SERIES-ID>S000006967
<SERIES-NAME>OPPENHEIMER DEVELOPING MARKETS FUND
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000019011
<CLASS-CONTRACT-NAME>A
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000019012
<CLASS-CONTRACT-NAME>B
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000019013
<CLASS-CONTRACT-NAME>C
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000019014
<CLASS-CONTRACT-NAME>R
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000019015
<CLASS-CONTRACT-NAME>Y
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000109466
<CLASS-CONTRACT-NAME>I
</CLASS-CONTRACT>
</SERIES>
</EXISTING-SERIES-AND-CLASSES-CONTRACTS>
</SERIES-AND-CLASSES-CONTRACTS-DATA>
</SEC-HEADER>
<DOCUMENT>
<TYPE>NSAR-A
<SEQUENCE>1
<FILENAME>answer.fil
<DESCRIPTION>OPPENHEIMER DEVELOPING MARKETS FUND
<TEXT>
Document 1 - file: answer.fil

</DOCUMENT>
</SEC-DOCUMENT>